Car-wheel with permanently-retained roller-bearing.



' '1. "L. MCDOWELL. CAR WHEELIWITH 'PEBMANENTLY RETAINED ROLLER BEARING. I I I 'APPUCATION FILED SEPJ'.5.19H-

1,256,150. Patented Feb-12,1 18;

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UNITED STATES PATENT OFFICE.

JOHN LEE MCDOWELL, 0F BERWIGK, PENNSYLVANIA, ASSIGNOR T0 AMERICAN CAR AND FOUNDRY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JEBSF GAB-WHEEL WITH PERMANENTLY-RETAINED ROLLER-BEARING.

Specification of Letters Patent.

Patented Feb. 12, 1918.

fipplipation filed Septemberfi, 1917. Serial No. 189,862.

To all whom it may concern:

Be it known that I, J orix LEE MCDOWELL, residing at Berwick, Columbia count-y, State of Pennsylvania, and being a citizen of the United States, have invented certain new and useful Improvements in Car-Wheels with Permanently Retained Roller Bearings, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and to use the same, reference being lufdltothe accompanying drawing, which illustrates the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details 'of construction shown and described, as it is obvious that various modifications thereof within the scope of the claims will occur to persons skilled in the art.

In said drawing the single figure illustrates my improved our wheel in vertical section, showing its relation with its associated journal box.

T his invention relates to details of construction of roller bearing wheels, adapted for mine car service, an'd comprises certain features of novelty hereinafter particularly pointed out and specifically recited in the claims.

Referring to the parts, 1 indicates the tread, 2 the spokes and 3 the hub of a mine. car wheel, which latter is provided with'a boss or stud 4 internally screwthreaded at 5 for temporary connection therewith of a grease gun adapted to force lubricant into the lubricating chamber 6, .from which latter the lubricant is conducted to the loose rollers 7 which are free to rotate Within the wheel hub independently of, although-supported in p'ositionaby, end annuli 8, which are; flanged inwardly, as at 8, parallel with and lapping spindles 9 of the rollers 7 so as to support said-rollers when the wheel is removed from its axle 1 0. Extending longitudinally within the roller bearing assembly of the wheel, is a sleeve or bushing 11 which contacts with I the rear wal1 12 of the wheel hub at one end and with an-insertod washer-.13 at the opposite and, thereby filling the" space between said wall 12andfthewasher 13 and preventing the. possibility of any part of the roller bearing-assembly becoming locked, due. to displacement, and preventing consequent disintegration of the roller bearing assembly. 7 The problem of lubricating mine car wheels is a diflicult one due to the desireof the operators to retain the present standards of equipment, which have been built to conform to established clearance diagrams and also to the practice in the several mines, in many of which nocbrakes are used upon the cars and spragging is resorted to to the lubricant shall be retained within the hub as long as it possesses any lubricating value. To that end, the annuli 8 are designed, as shown, to provide but a minimum clearance between their inner flanges B'and the axle 10 to retard the How of lubricant;

which might be entrained along the axle and otherwise escape at theinner or outer end of the wheel hub.

An additional precaution against the loss of lubricant has been provided in the present' invention which consists of peening the outer edge portion of the washer13 into asuitable annular groove of small dimension provided therefor,- as is indicated at 14 in the drawings. This peening operation may be' accomplishedby the use of the ordinary peening chisel after the washer 13 hasbeenplaced in position, with the result that said washer becomes a relatively, though not absolutely, permanent part of the wheel as sembly, and the possibility of loss of lubricent between the outer perimeter of 'this washer and the inner face of the wheel hub.-,.. borc is prevented. r 1

'To prevent excessivowear of the washer- 13, a washer. 15 is inter-posedjbetween the cotter pin 16 and said fvg'asher-13.- While the cotter pin .16 'issliown as a means for securing the wheel upon the ax1e,. it is to be noted that any convenient means may be adapted for that purpose, unless the washer 13 is secured in position as noted, thoughwhere'the washer 1-3 'isgp'een'ed into permancnt position the cotter pin. is preferred, If the wheel should become broken orotherwise unfit ,f or use, the washer 13 may be 11' Y Li l e-mo ed by destructive eflort andthe severcl partslof the roller bearing assembly reflevel' fo'r sub'sequenb 'use another in said bore, a separately formed annulus expanded intoand locked in the bore avall 1 beyond the outer end '01 said means to rewh-eel, i? desired." tain the same, an axle engaging said means "W ,t ll elain'ris; aandprojecting'beyond said annulus,awheell I. uombination a car Wheel with a hub attaching device passable through said hole in. -.l. n inner end wall and provided with and secured'to said axle and a washer loosely an enlarged bore and an open outer end. a mounted on said axle between said annulus liar-lunggfin said bore, an axle extending and device. through said inner wall and beyond said 5. In combination a car Wheel having a l hing, frietion-reducin' means in'termehub with an inner wall and PlOlllllGClXfitll ate said. axle and bushing and; a Washer an open-outer end and a bore enlarged near penetrated by. said 'axle and interlocking that end to form a shoulder, there being an internal depression in the all of the e nwith Wallet the bore loclringsaid bush- 321g" and'frietion-i'edueing means in position. larged bore portion, abushing in said bore l 2 In eonibinatioina ear wheel with a hub, between said shoulder" and inner Wall, an llavingan inner'i'vall and provided With an axle extendin through said inner Walland enlarged 'bor'e and an open outer end, it beyond said bushing. friMimi-reducing ne-hing in said bore, an axle extending tomeansinter-mediate said axle and bn'sl'iing a d the open hub end, frietion-reducin Washer bearing against said shoulder and 5 ms interposed between aid axle and deformed to be seated in said degivression P hing. a separately formed annulus pene-- locking said bushing and it'rielionrredueing "i by said axle and expanded into and, means in posilioin and Wheel-attacliing means on said axle outside said Washer.

.lingly retained by the Wall of the lane locking said bushing and frictionqe-f 6. In CODllJlllz'ltiDlL a car wheelwith a hub ll: ring means in position, and wheel-re having an inner Wall and provided'with an tainingmeanson saidjaxle Outside said an-: vopen-outer end, an enlarged bore and a nulus." i I lubricantehanibercommunicating with the.

In eoinbination, a earwheel having a hub exterior, a bushing perforated to establinb witlilan enlarged -bore and an open lish communication between saidehainber outer end, an axle extending into saidxbore, and bore, an axle, rollers intermediate said friction-reducing means in said; bore survaxle and bushing, axle-penetratedposition} rounding said axle, the wall o f ,the bore ing annuli for opposite ends of said rollers having a [depression therein beyond said in sufiieiently close relation to said axle to friction-reducing 'means and a hole beyond; retard tlie escape of lubricant, and a Washer 50 said depression, a separately formed aninsertible through the open hub end and nulus penetrated by said axle and expanded self-interlocked with the bore wall to posiinto and seated in said depression against tion said bushing, rollers and annuli. I yielding, retaining said friction-reducing In Witness whereof I have hereunto set n aans, and wheehattaching,means passable my hand in the presence of two Witnesses. S5, l-hft'Jllg-ll hole -and secnred H V 4: In eomblnatlon, a car Wheel having-a; L nub presided --wi;tl,1 -a n enlarged bore, ,..,Wit;nes'ses: v opeuourter end and a hole througlrthe bore .4 MARY Bunnie;

wall near that end,if rietion-reducing Ineans zlTnos, B; Huron-" v a a 

